US Bridges

FAI-H1 over Waiawa Ic #6 Old Kam HWY

Good

Honolulu County, Hawaii · 1.89MI E/Managers DR · Structure no. 003000H10200865

Built
1971
54 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
88 ft
1 main span
Daily traffic
128,800
2017 count
Owner
State
State Highway Agency

About this bridge

FAI-H1 over Waiawa Ic #6 Old Kam HWY is a prestressed concrete stringer/multi-beam or girder carrying FAI-H1 over Waiawa Ic #6 Old Kam HWY in Honolulu County, Hawaii. It was built in 1971, so it is 54 years old, younger than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 128,800 vehicles a day, roughly 4% of them trucks, projected to reach 162,194 by 2025. The structure is 88 ft (26.8 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFAI-H1
CrossesWaiawa Ic #6 Old Kam HWY
Location1.89MI E/Managers DR
RouteInterstate 0H1
StateHawaii
Coordinates21.39806, -157.98664
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating48.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span85 ft (25.9 m)
Deck width52 ft (15.7 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic128,800 (2017)
Projected traffic162,194 by 2025
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$694,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAI-H1 over Waiawa Ic #6 Old Kam HWY built?

It was built in 1971, making it 54 years old in 2025.

What condition is FAI-H1 over Waiawa Ic #6 Old Kam HWY in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does FAI-H1 over Waiawa Ic #6 Old Kam HWY carry?

About 128,800 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is FAI-H1 over Waiawa Ic #6 Old Kam HWY?

The structure is 88 ft (26.8 m) long with a longest span of 85 ft (25.9 m) and a deck 52 ft wide.

Who owns FAI-H1 over Waiawa Ic #6 Old Kam HWY?

It is owned by the State Highway Agency.